Jojoba oil is great to tame crazy hair. You need pure jojoba oil (you can find it in health stores) and you have to put some drops in your hands and run the hands through the ends your your hair. Start with a few drops and then you can add some more, if your hair needs it.
It´s all natural and your hair literally "drinks" it, you can reapply often to the ends if your hair is long.
For me the best to skip the frizzies, is combing only when wet with a wide tooth comb, and then adding jojoba to the ends when dry.
There´s a catch though, if your hair is short, it can make it oilier.
But Jojoba oil is just heavenly for dyed hair, when it looks just fried, like mine´s.
Silicone containing serums are great too, they do the job perfectly too, but silicone is awful for my skin. If some drop of serum touches my skin...breakout garanteed!